[openib-general] Re: opensm failure

[shaharf]

> > > > Oh. Is that a udev problem then?
> > >
> > > Yes. I Forgot to modify umad.c for the new udev scheme. I will do
it
> > > soon.
> > >
> > > Shahar
> >
> > Why cant I give the udev device path on a command line to opensm?
> > that would solve this once and for all, and let the user play with
> > udev names all he wants.
> 
> What I had in mind was something like:
> 
> ./opensm --dev /devinfiniband/umad0
> 
> to work on port 1 only
> 
> and
> 
> ./opensm --dev /dev/infiniband/umad*
> 
> to work on all ports of all devices.
> 
> /dev/infiniband/umad* could be a default (maybe set at configure time
> or by varibale in makefile), but otherwise I really think *forcing* a
> specific
> udev scheme is a problem, since this makes udev scheme part of abi,
> but not checkable by abiversion.
> 
> mst

You are correct about the udev scheme. I suggest that the ABI version
will change on any modification (Roland?)

Specifying dev seems like a bad idea. You will have to find what port is
active, reverse map it by scanning
/sys/class/infiniband_mad/*/{ibdev,port) and then find the correct umad
dev file and path its path to the opensm.

I prefer letting the library doing that. That what I have done and
commited. Please check again.

Shahar
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